Home / 299,981.10-449,995.60-100,302.54

Finding the Fourth Proportional to 299,981.10, 449,995.60 and 100,302.54

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Solution

The fourth proportional to 299,981.10, 449,995.60 and 100,302.54 is: 150,461.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,981.10 : 449,995.60 = 100,302.54 : x
  2. Step 2: Convert to fraction form
    299,981.10/449,995.60 = 100,302.54/x
  3. Step 3: Cross multiply
    299,981.10x = 449,995.60 × 100,302.54
  4. Step 4: Simplify right side
    299,981.10x = 45,135,700,106.72
  5. Step 5: Solve for x
    x = 45,135,700,106.72/299,981.10
  6. Step 6: Final answer
    x = 150,461.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.